

package cartagows.wsframework.wssecurity.policy.builders;

import java.util.Iterator;

import javax.xml.namespace.QName;

import org.apache.axiom.om.OMAttribute;
import org.apache.axiom.om.OMElement;
import org.apache.neethi.Assertion;
import org.apache.neethi.AssertionBuilderFactory;
import org.apache.neethi.builders.AssertionBuilder;

import cartagows.wsframework.wssecurity.policy.SP11Constants;
import cartagows.wsframework.wssecurity.policy.SPConstants;
import cartagows.wsframework.wssecurity.policy.model.Header;
import cartagows.wsframework.wssecurity.policy.model.SignedEncryptedParts;

public class EncryptedPartsBuilder implements AssertionBuilder {
        
    public Assertion build(OMElement element, AssertionBuilderFactory factory) throws IllegalArgumentException {
        
        SignedEncryptedParts signedEncryptedParts = new SignedEncryptedParts(false, SPConstants.SP_V11);
        
        for (Iterator iterator = element.getChildElements(); iterator.hasNext();) {
            processElement((OMElement) iterator.next(), signedEncryptedParts);
        }
        
        return signedEncryptedParts;
    }
    
    public QName[] getKnownElements() {
        return new QName[] {SP11Constants.ENCRYPTED_PARTS};
    }

    private void processElement(OMElement element, SignedEncryptedParts parent) {
        
        QName name = element.getQName();
        
        if (SP11Constants.HEADER.equals(name)) {
            Header header = new Header();
            
            OMAttribute nameAttribute = element.getAttribute(SPConstants.NAME);
            if( nameAttribute != null ) {
                header.setName(nameAttribute.getAttributeValue());
            }
            
            OMAttribute namespaceAttribute = element.getAttribute(SPConstants.NAMESPACE);
            header.setNamespace(namespaceAttribute.getAttributeValue());
            
            parent.addHeader(header);
            
        } else if (SP11Constants.BODY.equals(name)) {
            parent.setBody(true);            
        }        
    }
}
